Flood gate



Nov. 29, 1960 W. HANSON ET AL FLOOD GATE Filed Oct. 14, 1955 INVENTORS h//Y/dm Hav/.san BYCdr/es N Hanson United fates; Patfff?? FLOOD GATE William Hanson, 4622 Morningside Ave., Sioux City, Iowa, and Charles W. Hanson, Bronson, Iowa Filed Oct. 14, 1955, Ser. No. 540,478

1 Claim. (Cl. 6124) Our invention relates to a flood gate.

An object of our invention is to provide a tiood gate which is of relatively light construction, and so that by virtue of its light construction it can readily open.

A further object of our invention is to provide a special type of flood gate which is angularly positioned, and which includes special types of hinges so that the relatively light gate will lirmly close and remain rmly closed unless opened in the usual manner.

A further object of our invention is to provide a ood gate which can be readily clamped onto the conduit and which will be securely locked thereto.

With these and other objects in View, our invention consists in the construction, arrangement, and combination of the various parts of our device, whereby the objects 'contemplated are attained, as hereinafter more fully set forth, pointed out in our claim and illustrated in the accompanying drawings, in which:

Figure 1 is a forward elevation of the gate,

Figure 2 is a sectional view of Figure l taken along the lines 2-2 thereof, and

Figure 3 is a detail of an end view of the clamping arrangement.

Our invention contemplates the provision of a flood gate of economical cost and relatively light construction and which will function to properly close and open.

We have used the character 10 to designate a substantially circular plate made of suitable metal which need not be of too heavy gauge, which member 10 terminates at 11, the character 12 indicating a further plate section also terminating at 11, the combined members 10 and 12 providing a complete circular area.

Welded to the plate portion 12 and only to this portion is a circular band 13 which is split apart at 14 and which is attached to the extending angle members 15, these angle members being bolted together by the bolts 16 when the unit is assembled.

Welded to the band 13 is a substantially semi-circular round in section bar 17 which terminates at 18 and at 19, and also welded to the band 13 is a further small bar portion 20.

A channel iron 21 assists in rigidifying the structure, this channel iron being attached to the plate portion 10.

An angle iron 22 is welded to the section 12 to assist in closing the seam at 11.

Attached to the plate section 10 are the flaps 23, and extending from the aps 23 are the integral central cylindrical portions 24 having the sloping surfaces 25 and 26, and secured to the portion 12 is a further ap 27 having the cylindrical portions 28 having the sloping surfaces N 2,961,836 Planted Nov-aa 196,0

29andf 30;- the surfaces 30 registering'with It'hefslopirig surfaces 25. The various cylindrical members 24 and 28 include suitable openings for the reception of the hinge pins 31 which are placed therethrough, the cotter keys 32 retaining these hinge pins.

The assembly is clamped to the end of the corrugated conduit 33 by inserting the band 13 over the end of the conduit and so that the bars 17 and 20 will lie within the recess of one of the corrugations as clearly shown in Figure 2. The gate is first hung so that the seam at 11 is substantially at the desired angle, an exact angle not being really essential as long as the angle is substantially accurate. Next, the bolts 16 are turned, which draws the flanges 15 together correspondingly drawing the band up tightly and so that the rods 17 and 20 will thus securely retain the assembly from being displaced from the end of the conduit.

The conduit 33 provides the laterals in the drainage system, and when the water in the ditch at 34 for instance subsides, the gate Will open `due to the pressure of water passing through the conduit in the direction of the arrow 35. It will be particularly noted that as the gate opens, due to the sloping portions 30 on the stationary hinged portions 28, the sloping surfaces 25 which are a part of the movable portions of the member 23 will gradually rise on these surfaces 30 due to the inclined formation thereof so that as the gate opens, it will gradually rise slightly, the rising action being permitted by means of the gaps at 36 between the portions 24 and 28. Therefore, when the gate closes, it will thereby be in a weightbiased position so that as it closes, the angular positioning of the gate 10 together with this sloping formation will cause the gate to close firmly and securely, this angular formation and the other elements thereby providing this desirable result and in a lighter weight gate.

When the gate is hung from the right-hand side if such is desired instead of the left as shown, the sloping surfaces 26 and 29 will function in the same manner. The sloping surfaces are also formed in such a manner so as to causee the member 10 to tend to go past center to insure firm closing thereof.

It will be noted that the various members described also permit the gate to clear itself of debris due to the lighter weight and the automatic functions of easier openmg.

It will now be seen that we have provided the various advantages mentioned in the objects of our invention with other advantages being readily apparent.

Some changes may be made in the construction and arrangement of the parts of our invention without departing from the real spirit and purpose of our invention, and it is our intention to cover by our claim any modified forms of structure or use of mechanical equivalents which may be reasonably included within its scope.

We claim as our invention:

In combination with a corrugated circular conduit, a segmental partially circular plate, a stationary segmental portion to which said partially circular plate is hinged, said stationary portion and said partially circular plate being substantially circular in shape in combination, the juncture between said stationary portion and said partially circular plate being positioned at an angle laterally whereby the weight of said partially circular plate will be biased downwardly laterally, said stationary portion References Cited in the file of this patent UNTTED STATES PATENTS Harris Feb. 10. 1931 4 Hayward Aug. 13, 1872 Bogy Dec. 2, 1884 Hartman Feb. 18, 1908 Hauser Aug. 3, 1920 Thovson et al Dec. 9, 1924 Brager et al Nov. 24, 1925 Pekrul May 22, 1928 Barber Feb. 20, 1940 FOREIGN PATENTS Great Britain July 3, 1935 vielem 

